From fd50d6e55396c1cd14dff14fcdfdd8663930afd1 Mon Sep 17 00:00:00 2001
From: Iwo Plaza <iwoplaza@gmail.com>
Date: Thu, 7 May 2026 11:46:37 +0200
Subject: [PATCH] fix: Inter struct copies

---
 packages/typegpu/tests/struct.test.ts | 37 +++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/packages/typegpu/tests/struct.test.ts b/packages/typegpu/tests/struct.test.ts
index 14dc0984aa..e434091f00 100644
--- a/packages/typegpu/tests/struct.test.ts
+++ b/packages/typegpu/tests/struct.test.ts
@@ -421,6 +421,43 @@ describe('struct', () => {
       }"
     `);
   });
+
+  it('copies?', () => {
+    const Boid = d.struct({
+      pos: d.vec3f,
+      vel: d.vec3f,
+    });
+
+    const Boid2 = d.struct({
+      pos: d.vec3f,
+      vel: d.vec3f,
+    });
+
+    function main() {
+      'use gpu';
+      const boid = Boid();
+      const boid2 = Boid2(boid);
+      return boid2;
+    }
+
+    expect(tgpu.resolve([main])).toMatchInlineSnapshot(`
+      "struct Boid {
+        pos: vec3f,
+        vel: vec3f,
+      }
+
+      struct Boid2 {
+        pos: vec3f,
+        vel: vec3f,
+      }
+
+      fn main() -> Boid2 {
+        var boid = Boid();
+        var boid2 = boid;
+        return boid2;
+      }"
+    `);
+  });
 });
 
 describe('WgslStruct', () => {